If we're not vigilant foreign countries can have an impact on the political debate in the United States in ways that might not have been true 10, 20, 30 years ago in - in part because of the way news is transmitted and in part because so many people are skeptical of mainstream news organizations that - everything's true and everything's false.

Our journey is not complete until we find a better way to welcome the striving, hopeful immigrants who still see America as a land of opportunity, until bright young students and engineers are enlisted in our workforce rather than expelled from our country.

For now, whether you are young or whether you're young at heart, I do have one final ask of you as your president, the same thing I asked when you took a chance on me eight years ago. I am asking you to believe not in my ability to bring about change, but in yours.

All I can say is [kids] have turned out to be terrific young women. We were concerned mostly about whether they'd develop an attitude, right?

I think I did in the sense that there's a whole generation coming up behind us that was engaged, inspired, worked for change during the course of my presidency, saw what was possible. And that generation, it's coming.

Reality has a way of asserting itself.

We remember the surge and we remember the Awakening -- when the abyss of chaos turned toward the promise of reconciliation. By battling and building block by block in Baghdad, by bringing tribes into the fold and partnering with the Iraqi army and police, you helped turn the tide toward peace.